Condenser



WITNESSES: I 1 I VIRIVENTOR U 4 ghl'ill os 77vomas.

ATTORNEY PHILLI?S THOMAS, OF EEG-E'WOQL, PENNSYL ELECTRIC & MANUFACTURING O1il GONEDEIQ'SER,

Applicaiion filed February 135, 5919.

T 0 all 71 1 20722, it may concern Be it known that i, inrnmrs TH citizen of the United States, and a resident of Edgewood, in the county of Aiiegiieny and State of Pennsylvania, nave invented a new and useful Improvement in Condensers, of which the following a specification.

My invention relates to condensers and it has, for its primary object, the construction of condensers which may be ein'pioyeci for relatively heavy duty, such as is experienceci in Wireless systems.

Hereto'fore, difficulty has been experienced is employing condensers for heavy (iucy, such as is experienced in wireiess syrsems, on account of the face that, being provicieci with molded casings, the condensers were sometimes injured by excessive heating, the molded casings not being good re-ciiators.

n View ofshis, one object of my inven tion is so construct condensers having cesings suitable for dissipetinghest much, at the some time, shei}. possess niecheniceiiy MAE, e

strong and compact structures obtained utilizing uniizery casings formed about the condensers.

A stiii further object of my invention is to construct condensers having unitary casings which may be employed as terminals for the condensers.

With these snci other objects in View, my invention will be more fully described, iiiu treated in she drawings, in the several views of which correspomiing numerals indicate like parts, and ihen particularly pointed cue iii-the claims.

. In the drawings, Figure 1 is e sie View, partly in section and partly in elevation, of a condenser embodying 1ny invention, and Fig. 5?; is e similar View of a condenser strucceii accordance Wish my iziveni-ioli and crabs-flying a modified form of terminal.

In practising my invention, I may construct a condenser by smoking eiirerns ze i 1yers of insulating anci concinci-ing material in the usual mariner. The stacked material may be impregnated wish a suiiabie molten wax and cooied and pressed to form a comact body. A plurality of terminsis may o secured to the layers of confine/sing mm teriei in the usuai manner, the t oinais,

however, being made relatively short,

which insuisting B1&i3=81i3i. such {is mi be 5131105861 as one side or the couoenser Specification of Letiers i conduct projecting om che s snie. In

some instances. a COVQTULQ' o ir-sisunp r zne'ieriin, such asbestos, may 'iien posed abous the body and be provided therefor by taiiic eiioy about the body. casing, thus formed about the condenser, engages he ccrniinai not protected by insulating inc terioi and, therefore. constitutes an QXiZGTiGF terminal for the condenser. notifier exterior terininai may be provided by (iriiiing on opening, through the casing and the in a: moterisi, so communicate with the ole-cash? a "meoteced terminal Within the casing, after a snitabie conductor may be secureci in the opening to engage the terminal 0 project from ijili? cesii'ig. The ceci projects the cesin may dei by fastening e conductor I aiso be rovi to the 3 about the condenser body, insuiaiing meserial being; interposed between the condoctor 3315: the casing.

In order to insure an accurate linden siending of my invention, I have shown, in Fig. i, a condenser comprising a. main bodyportion 1 which insy be formed, in the usual manner, by eithecstecking' alternate layers of insuiatingz and conducting;tmeteriei or by iiniiing reiaiiveiy long posed insuiecing and conducting materiel Such superimposed ms feriai my be subjecifieci to a bash of moieen ,wsx, such. as iisiowex, mont n-Wei: or suiiccie impregnating ageniz, and the boiiy may be subjecieci to pressure in a cooling 0 compact the meo'cei'si remove excels imure neting- Wax. Terminals then e provicieci for ccmicnser by securing the respective iayers reiaiiveiy shore body-portion 1 then be incio ad in a casing i by ciie-cssiing suits/bio metal about body, the metals connnoniy employeii for rile-cast 1,2 being utilizes on account of iow ffiaiilil g points. However, yin-e bodyportion l of the condenser is'coverec? 6112 1511 before the casing; is formeii strips of superim" with a suit-able heat-resisting material, a casing may be formed thereabout with metals having hi -her melting points than the metallic alloys utilized in die-casting.

The casing 4, being formed about the condenser, engages the terminal 2 not protected by the insulating material 3 and, therefore, constitutes one exterior terminal of the con denser. Another exterior terminal 5 may be provided by drilling an opening through the casing 4 and insulating material 3 to expose a portion of the terminal 2 inclosed thereby. after which the conductor 5 may be secured within this opening to engage the terminal 2 and may be insulated from the casing at by an insulating bushing 6. The insulating bushing (3 may be formed of a suitable moldable material which may be molded between the conductor 5 and the casing 4 or the bushing may be formed and wed ed therebetween.

Tfie conductor communicating with the terminal insulated from the casing of the condenser may be secured thereto in a variety of ways. For example, the conductor 5 may be secured to the terminal 2 and surrounded by the insulating bushing 6 before the casing 4 is east about the condenser, the particular manner of securing the conductor within the casing being governed, to a certain extent, by the character of the metal comprising the casing 4. When a low-melting-point alloy is employed, the conductor is preferably secured to the terminal before the casing is cast about the condenser because. the insulating bushing may be sufficiently heatresistant to Withstand the degree of heat employed in diecasting such metal. This is also true of the covering employed about the condenser to withstand the heat. In case a low-meltingpoint alloy is employed, material possessing a. lower degree of heat resistivity may 'be employed asa covering to protect the condenser.

In Fig. 2 is shown a condenser similar to the one shown in Fig. 1, with the exception of the terminal 7 which comprises a structure similar to a spark plug in which the conductor 8 is insulated from the outer casing by a porcelain sleeve. When employing the terminal 7, it may be secured to the casing, after it has been cast about the condenser, by tapping a suitable opening 9 into which the threaded portion of the terminal may be screwed so that the conducting memher 8 may engage the inner terminal 2 of the condenser l. A terminal of this type provides a very satisfactory connecting means to the condenser and I prefer to employ this type of structure.

Although I have specifiailly described a condenser which may be constructed in accordance with my invention, it is obvious that slight changes may be made in the with the conductor projecting therefrom.

construction thereof, as I have pointed out, tor example, a variety of terminals which may be employed and have described a plurality of ways of providing such terminals. It will be obvious. therefore. that my inven- 7 tion should not be limited to specific structures except as defined in the appended claims.

I claim as my invention:

1. A method of making condensers that 7 comprises superposing alternate layers of insulating and conducting material, impregnating the superposed material, securing a plurality of terminals to the conducting material. die-casting a casing about the body thus formed. with one terminal engaging the casing and the other insulated them from, and extending a conductor through the casing to engage the terminal insulated from the casing.

2. A method of making condense comprises superposing alternate lay sulating and conducting material mating the superposed material. k plurality of terminals to the conducting material, disposing insulating material to cover one of the terminals. die-casting a metallic casing about the body thus formed, provide ing an opening through the casing and insulating material communicating with the terminal and securing an insulated conductor in the opening to engage the terminal.

3. A method of making condensers that comprises superposing alternate layers of insulating and conducting material, im pregnating the superposed material, secur ing a plurality of terminals to the conducting material, securing an insulated conductor to one of the terminals and'die casting a metallic casing about the body thus formed,

4. A method of making condensers that comprises superposing alternate layers of insulating and conducting material, impregnating the material with a suitable wax, covering the body thus formed with a heatresisting material. securing terminals to the layers of conducting material at opposite sides of the body, disposing insulation over one side of the bod; to cover the terminal, die-casting a metallic casing upon the body, providing an opening therethrough communicating with the insulated terminal and .so securing an insulated conductor therein as to engage the terminal and project from the casing.

A method of making condensers that comprises superimposing alternate'layers of insulating and conducting material, securing terminals to the respective layers of conducting material and d e-castinga metallic. easing about the condenser thus formed.

6. A method of making condensers that comprises superimposing alternate la ers of insulating and conducting materia diecasting a metallic casing about the assembled material, with a portion of the conducting niateiial engaging the casing and the remaining conducting material insulated therefrom, providing a threaded opening in the metallic casing and screwing an insulated conductor into the threudedepening of the casing to engage the conducting ma.- terial insulated therefrom and teipiovicle an airtight joint with the casing.

In testimony whereof, I have hereunto subscribed my name this 13th day of Feb 1919. I

PHILLIPS THOMAS. 

